If you are working with electricity most people will measure it in watts.
So, A. watts is your best answer.
Hope I helped! ^w^
Answer:
15.76N
Explanation:
horizontal component =Fcos¢ = 20cos38 = 15.76N
Guessing you want the average speed. We can multiple each speed by the time we spent going that speed, and them all together and then divide by the total time we spent in traffic to get the average speed. We spent a total of 7.5 minutes in traffic, so average speed = (12*1.5+0*3.5+15*2.5)/7.5 = 7.4 m/s